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  1. Age, growth and size at sexual maturity of Macrourus carinatus caught as by-catch in Australian sub-Antarctic trawl fisheries

    in clear polyester casting resin and cured at room temperature for 24 hours. Four otolith sections, each ... , ensuring that the otolith primordium was included. Sections were cleaned with alcohol, immersed in resin ... clearly discernable on the ventral side of the otolith sections. Figure 1 shows the position ... 3 Developing Developed 4 Gravid Ripe 5 Spent Spent Figure 1: A transverse section of a Macrourus carinatus ...

    Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 139–151 : Author(s): van Wijk, E.M., R. Williams and A.J. Constable

  2. Demographic characteristics of the Adélie penguin population on Béchervaise Island after 12 years of study

    was commenced in 2001; this paper presents results of these analyses and extends the initial demographic ... from 1990/91 to 2001/02. The Adélie penguin colony on this island consists of approximately 2 000 ... and 2001/02. Thus individuals initially tagged at Béchervaise Island and later found breeding on other ... period (mid-November) were determined for each of the breeding seasons from 1990/91 to 2001/02. Counts ...

    Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 53–74 : Author(s): Clarke, J., L.M. Emmerson, A. Townsend and K.R. Kerry

  3. An assessment of the mackerel icefish (Champsocephalus gunnari) off Heard Island

    catch limit is calculated using the results of the trawl survey carried out during August 1997 ... previous surveys and results from a new survey carried out in August 1997. A precautionary catch limit ... AND SIZE AT FIRST SPAWNING C. gunnavi on the Heard Plateau and Gunnari Ridge spawn in August/September ... in the Gunnari Ridge/Heard Plateau area in September 1993 and August 1997. Fish at stage 2 (developing ...

    Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 79–101 : Author(s): de la Mare, W.K., R. Williams and A.J. Constable

  4. Investigation of bias in the mark–recapture estimate of toothfish population size at South Georgia

    Georgia Figure 3: CPUE density interpolated from all data from 2001 to 2004 in box 14, showing also ... represent mean effort (in hooks) from 2001 to 2004, with the diameter of the circles being proportional ... 2001 and 2002, but without the tag–recapture element. Thus move- ment and natural mortality of tags ... size, growth and selectivity. These issues may have a part to play in creating further levels of bias ...

    Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 47–63 : Author(s): Agnew, D.J., G.P. Kirkwood, J. Pearce and J. Clark

  5. Distribution of fish larvae at South Georgia: horizontal, vertical, and temporal distribution and early life history relevant to monitoring year-class strength and recruitment

    ". 1. WINTER SOUTH GEORGIA ZONE SURVEY, 28 JULy TO 21 AUGUST, 1983 Methods The study was a grid survey ... of the population. It would also be pertinent to measure the wind strength and direction in the bay during August ... Champsocephalus gunnari hatch at about 12.5 mm total length in August to October. An average growth rate of 0.35 ... S 1 ,--------,---------,1---------1,--------,1---------1 1 0 2 3 4 5, nm (b) vertical section. Figure 26 CUmberland East Bay, station sampled along 1-3. Depth ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 105-141 : Author(s): North, A.W.

  6. Length-based assessments revisited – why stock status and fishing mortality of long-lived species such as toothfish cannot be inferred from length-frequency data alone

    abundance. Punt et al. (2001) investigated mean length and the upper 5th percentiles of length (and weight ... (variable rec) Individual trial specifications Reference year 2000 First year of projection 2001 ... al., 2001; Somerton and Kobayashi, 1991; Cope and Punt, 2009). The simulation results presented ... , although issues with regards to ageing errors of otoliths and the representativeness of samples re- main ...

    Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 57–73 : Author(s): Ziegler, P.E., D.C. Welsford and A.J. Constable

  7. Beyond MSY: a consideration of definitions of management objectives

    populations behave, and that not enough account is taken of interactions between species and variability ... The previous section suggests that if a stock could suffer from both recruitment and growth overfishing ... . Knowledge of the interactions between krill and other species is still far from enabling a target ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 299-322 : Author(s): Gulland, J.A.

  8. Acoustic estimates of krill density at South Georgia, 1981 to 1998

    m isobath, and sections of cruise track from which acoustic data for krill density estimation were taken ... . The causes of this variability are likely to be complex and involve interactions of numerous physical ... and P. Rothery. 1988. Reproductive performance G.C. Cripps. 1999. Krill-copepod interactions of seabirds ... estimates of krill density at South Georgia, 1981 to 1998 Everson, I. 1984. Marine interactions. In: Laws ...

    Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 47–57 : Author(s): Brierley, A.S., J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson

  9. Options for allocating the precautionary catch limit of krill among small-scale management units in the Scotia Sea

    c Committee and the Commission (SC-CAMLR, 2001; CCAMLR, 2001), and a workshop was convened under the aus ... ., 1999; Boyd and Murray, 2001). While it may be preferable to index krill biomass and/or hydrographic ... 5090 –4.651 25.7 2.272 –4.422 2000/01 34.7 5263 –4.701 6.6 2.320 –4.176 2001/02 46.6 5240 –4.628 3.3 ... Georgia (Boyd and Murray, 2001; Boyd, 2002b). In contrast, the predator and krill data for the South ...

    Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 81–97 : Author(s): Hewitt, R.P., G. Watters, P.N. Trathan, J.P. Croxall, M.E. Goebel, D. Ramm, K. Reid, W.Z. Trivelpiece and J.L. Watkins

  10. Significant intra-annual variability in krill distribution and abundance at South Georgia revealed by multiple acoustic surveys during 2000/01

    ), and in March 2001 (late-season). The surveys were the first in a newly planned five-year series of observations ... (mid-season), and in March 2001 (late-season). The surveys were the first in a newly planned five-year ... January 2000/01 (mid-season), and in March 2001 (late-season). The surveys were the fi rst in a newly ... /début janvier 2001 (mi-saison) et en mars 2001 (vers la fi n de la saison). Ces campagnes étaient les ... 2001 г. (конец сезона). Это были первые съемки в недавно намеченной 5-летней серии наблюдений, которая ... nes de diciembre y comienzos de enero de 2000/01 (mediados de la temporada) y en marzo de 2001 (a fi ...

    Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 71–82 : Author(s): Brierley, A.S., C. Goss, S.A. Grant, J.L. Watkins, K. Reid, M. Belchier, I. Everson, M.J. Jessop, V. Afanasyev and J. Robst

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